| Amstetten to Navodari | 706.32 mi (1,136.72 km) |
| Amstetten to Negresti-Oas | 395.85 mi (637.06 km) |
| Amstetten to Nehoiu | 573.66 mi (923.22 km) |
| Amstetten to Ocna Mures | 438.02 mi (704.92 km) |
| Amstetten to Odobesti | 597.24 mi (961.17 km) |
| Amstetten to Odorheiu Secuiesc | 504.88 mi (812.52 km) |
| Amstetten to Oltenita | 627.97 mi (1,010.63 km) |
| Amstetten to Onesti | 572.81 mi (921.85 km) |
| Amstetten to Oradea | 336.40 mi (541.38 km) |
| Amstetten to Orastie | 422.59 mi (680.10 km) |
| Amstetten to Oravita | 387.13 mi (623.03 km) |
| Amstetten to Orsova | 428.09 mi (688.94 km) |
| Amstetten to Otelu Rosu | 396.64 mi (638.33 km) |
| Amstetten to Otopeni | 587.80 mi (945.98 km) |
| Amstetten to Ovidiu | 705.56 mi (1,135.49 km) |
